Time-switch.



M. SCHOLL.

TIME SWITCH.

APPLICATION FILED MAY 9. 191a.

Patented Jan. 15, 1918.

3 SHEETS-SHEET 1.

awuemto c Max Sr/wll,

abtoznm M. SCHOLL- TIME SWITCH.

APPLICATION FILED MAYQ. 1916.

1,253,893, Patented Jan.15,1918.

' I 3 SHEETS-SHEET 2.

IHIEIIIHIII avwemtoz Max Svfioll,

M. SCHOLL.

TlME SWITCH.

APPLICATION FILED MAY 9, 1916.

1,253,893. I Patehted 33.11.15, 1918;

3 8HEETBSHEET 3.

Max Sfloll,

MAX SCHOLL, or nous'ron, TEXAS.

T/IME-SWITCH.

Application filed May 9, 1916. Serial No. 96,394. i

To all whom-it may concern; Be it known that I, MAX ScHoLL, a subject of the Emperor of Austria, residing at Houston, in the county of Harris and State of Texas, have invented new and useful Improvements in Time-Switches, of which the following is a specification.

This invention relates to improvements in time switches and has particular application to a timeswitch which will be automatically operated to close the circuit and to open the circuit at predetermined times so that the translating devices in the circuit may be maintained energized for a predetermined length of time. y In carrying out the present invention, it is my purpose to provide a time controlled switch wherein the circuit closer will be automatically actuated to circuit closing position at a predetermined time, locked in such position for a predetermined length of time, and thenautomatically released after a'prescribed interval so that such circuit closer may be restored'to'open position to break the controlled circuit.

With the above and other objects in view the invention consists in the construction, combination and arrangement of parts hereinafter set forth in andfallingwithin the scope of the claim.

In the accompanying drawings;

Figure- 1 is a view in elevation of a switch constructed in accordance with the present invention.

Fig. 2 is a vertical sectional view the switch.

Fig. 3 is a similar view taken at right angles to Fig. 2.

Fig. 4 is a horizontal cross sectional view on the line 44 of Fig. 3.

Fig. 5 is a similar view taken on a vertical plane.

Figs. 6 and 7 are views of details of the invention.

Fig. 8 is a diagrammatic view.

Referring now to the drawings in detail, 1 designates a vertical casing which, in the resent instance, is substantially rectangular 1n horizontal section and closing one side of the casing is a hinged door 2 capable of swinging movement to open position so that access may be had to'the interior of the casing. Mounted within the casing 1 and appropriately fastened therein is a vertical baseboard 3 and fastened to the baseboard 3 adjacent to the lower end thereof is a frame through Specification of Letters Patent.

Patented Jan-.15, 191,8.

4 projecting outwardly from the baseboard. Mounted in theframe 4 is an electro-responsive device in the form of a solenoid 5 and mounted in the solenoid 5 is a core 6 having one end projecting below the solenoid and the'other end projecting above the solenoid. Secured to the lower end of the frame 4 and projecting outwardly therefrom in relatively opposite directionsare metal strips 7 insulated from each other and from the frame andsec'ured to these strips are contacts 8 adapted'to be connected in the electric circuit to be controlledby the switch. Adjustably fastened to the lower end of the core 6 and insulated therefrom is a bridging element 9 normally standing at lowered position outof engagement with the contacts 8 under the action of gravity and adapted 'to' move upwardly to bridge the contacts 8 when the core is elevated incident to the energizationof the solenoid ,5. Suitably fastened to the baseboard 3adjacent to the upper end thereof and projecting outwardly therefrom is an electro-respo'nsive device in-the form of a solenoid 10 provided with a vertically movable core 11 composed of soft iron or'the like and havingthe lower end projecting below the solenoid." Projectingoutwardly from the baseboard short distance above the frame 4 arehori zontal pivot studs 12 arranged side by side and "spaced apart and pivoted upon these studs 12 are locking latches 13 having the lower ends formed with inwardly project ing hooks 14 and their upper end formed with upwardly projecting cars 15. Connected to the lower end of the core 11 is a cross bar 16 and the outer ends of the cross bar 16 are connected to the cars 15 respectively through the medium of links 17. Se' cured to the upper end of the core 6 is a head 18.

When the solenoid 5 is energized the core 6 is moved upwardly and the bridging element 9 engages the contacts 8 to close the controlled circuit, while the head 18 enters the space between the latches 13 and is engaged by the inwardly projecting hooks 14 so that the core of the solenoid 5 will be held elevated after such solenoid is deenergized. When the solenoid 10 is energized the core 11 is elevated and in the upward movement of the core 11 the latches 13 are swung through the medium of the cross bar 16 and links 17 to disengage the hooks 14 from the head 18, thereby releasing the core i respectively, Whlletlle remaining ternii- 11 and permitting the bridging element 9 to drop to lowered position, and break the controlled circuit. Secured to the other side of the baseboard 3 are fingers 19, and 21 and the fingers 19 and 21 are connected to corresponding terminals of the solenoids 5 and sectors each graduated to twelve hours and the gear 26' completes one revolution in every .twentysfour hours. Pivotally connected to the center of the gear 26 are radial arms 27 and 28 capable of relativeadjustment and adapted to be held in adjusted position by a clamping nut 29. On the outer end of the arms 27 and 28 are bridging fingers respectively. The finger 30 on the arm 27 is adapted tobridge the fingers 19 and 20, while the finger 30 on the arm 28 is adapted to bridge the fingers 20 and 21.

In practice, the arms 27 and 28 are adjusted about the axis of the gear 26 to the desired relative position and in the rotation of the gear 26 by the clock mechanism the finger on the arm 27 will bridge 'thefingers 19 and 20 to close the circuit of the solenoid 5, while in the continued movement of the gear 26 the finger on the arm 28 will bridge the fingers 20 and 21 to energize the solenoid 10. s

Copies of this patent mag te obtained for In the present instance, the clock 23 and the gear 26 carrying the arms 27 and 28 are mounted in a casing 31 which is secured to the casing 1 and opens into the latter so that I the bridging fingers on the arms 27 and 28 may engage the fingers connected to the solenoid.

While I have herein shown and described the preferred form of my invention by way of illustration, I wishit to be understood that I do not limit or confine myself to the precise details of. construction herein described and delineated, as modification and variation may be made within the scope of the claim and without departing from the spirit of the invention.

' I claim;

In a device of the class described, the combination with anupright board, a frame at the lower end thereof, spaced contacts carried by the frame, a solenoid within the frame whose corepasses down between said contacts, a bridging element forsaid contacts carried by the lower end of the core,

and a head at its upper end; of a second solenoidwcarried by the board above and alined with the first, a cross bar on-the'lower portion of its core, a pair of latches pivoted 'on said board between the solenoids and having hooks to'engage said head when it is raised, links eonnectingthe latches with said cross bar, and means for alternately enep gizing said solenoids.

In testimony whereof I affixamy signature;

MAX SCHOLL. Witnesses I I I 'S. MEYER, V H. W. STERN.

five cents each, by addressing the Commissioner a); Patents,

Washington, D. 0.? 

